And with the rise of Arab clubs signing expensive players like CR7 and Neymar, they are attracting a lot of talent and encouraging the current generation to follow and enjoy football more, which could result in a talented generation for the next World Cup tournaments.
Currently, SPL has become one of the elite leagues in the world because Saudi Arabia has brought in many world football legends, even some of them are great players from Europe who are in their prime such as Neymar, Benzema, Mane, Kante and many more. This is expected to be a competition that will make Saudi Arabian football better. But on the other hand, currently the fact is that most of the Saudi Arabian national team players are only filled by bench players from their clubs because they are unable to compete with top players from Europe. Of course this is not a good thing for their national team. But on the other hand, I think in the next ten or twenty years, Saudi Arabia has the potential to become one of the strongest football countries in the world. That can happen if they are consistent because I am sure that in the future there will be many young Saudis who will be interested in football.
You have a point, Saudi Arabia has a promising future with the rise, development through investments and improvements in its football infrastructure. There is no point in nations competing in every World Cup if they don't develop their football, this takes decades. There is a whole process of cultural adaptation, children need to grow up playing football as happens in brazil, which was once known as the country of football, exporting legends.